CN114986206B - Double-chain clamping device - Google Patents
Double-chain clamping device Download PDFInfo
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- CN114986206B CN114986206B CN202210793243.XA CN202210793243A CN114986206B CN 114986206 B CN114986206 B CN 114986206B CN 202210793243 A CN202210793243 A CN 202210793243A CN 114986206 B CN114986206 B CN 114986206B
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- locking
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- chain
- chain wheel
- shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to the field of numerical control machining and discloses a double-chain clamping device which comprises V-shaped iron and a compressing piece used for compressing a workpiece on the V-shaped iron, wherein the compressing piece is attached to the surface of the workpiece through bending, one end of the compressing piece is connected to one side of the V-shaped iron, an adjusting device used for adjusting the compressing force of the compressing piece is arranged on the other side of the V-shaped iron, and the other end of the compressing piece is connected to the adjusting device. The workpiece is firmly pressed, the upper cambered surface is fully stressed, and the deformation is small. And secondly, the compacting piece can be reasonable in length and height, so that the clamping is convenient, and the safety is ensured.
Description
Technical Field
The invention relates to the field of numerical control machining, in particular to a double-chain clamping device.
Background
In the existing machinery manufacturing industry, when processing end face holes of large-diameter shaft and cylinder parts, a mode of pressing the upper bottom face of a boring and milling machine by using a V-shaped iron pressing plate is commonly adopted. The advantage of this approach is that it is easy to use, but has the following disadvantages:
1) When the diameter of the workpiece exceeds 800 mm, the pressing plate is too long and is easy to deform, and the pressing bolt is far away from the workpiece, so that the pressing force is weakened.
2) Too high a support sizing block is unsafe.
3) The cylinder parts, especially the thin-wall cylinder parts, are easy to deform because the workpiece is stressed on a line with an upper cambered surface.
4) When the workpiece exceeds 2 meters, the compression bolt is too high, so that the clamping is not convenient and the safety is not ensured.
Disclosure of Invention
The invention aims to provide a double-chain clamping device which solves the problems of poor convenience and low safety coefficient of clamping large workpieces in the existing clamping device.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the utility model provides a double-chain clamping device, includes V-arrangement iron and is used for compressing tightly the work piece on the V-arrangement iron compress tightly the piece, compress tightly the piece and laminate on the surface of work piece through buckling, one end that compresses tightly the piece is connected in one side of V-arrangement iron, the opposite side of V-arrangement iron is equipped with the adjusting device who is used for adjusting the dynamics of compressing tightly, the other end that compresses tightly the piece is connected on adjusting device.
Preferably, the pressing piece is a single-row chain or a double-row chain.
Preferably, the adjusting device comprises a mounting box arranged on one side of the V-shaped iron, a guide sprocket and a locking sprocket are arranged on the outer wall of one side of the mounting box, the guide sprocket is close to one side of the workpiece, the pressing piece bypasses the lower portion of the guide sprocket and is meshed with the upper portion of the locking sprocket, and a locking structure for controlling the locking sprocket to rotate is arranged on a first shaft rod of the locking sprocket.
Preferably, a guide sleeve is arranged between the guide sprocket and the locking sprocket, one side of the guide sleeve is fixedly connected to the outer wall of the installation box, two ends of the guide sleeve are of arc structures, one end of the guide sleeve is sleeved on the lower part of the guide sprocket, and the other end of the guide sleeve is sleeved on the upper part of the locking sprocket; and a control structure for driving the guide chain wheel and the locking chain wheel to rotate is arranged in the installation box.
Preferably, the control structure comprises a driving shaft arranged in the mounting box, the second shaft rod of the guide chain wheel and the first shaft rod of the locking chain wheel are in transmission connection with the driving shaft, and a rotary handle detachably connected with the driving shaft is arranged outside the mounting box.
Preferably, the locking structure comprises a worm wheel arranged on the first shaft lever, and the driving shaft is provided with a section of worm, and the worm is meshed with the worm wheel.
Preferably, a first bevel gear is arranged on the driving shaft, a second bevel gear meshed with the first bevel gear is arranged in the mounting box, and the second bevel gear is connected with the second shaft rod through a universal coupling.
Preferably, the second shaft rod and the driving shaft between the first bevel gear and the worm are both provided with unidirectional driving control structures, the forward and reverse rotation of the driving shaft alternately controls the first shaft rod and the second shaft rod to rotate in opposite directions through the unidirectional driving control structures, an opening is formed in the upper portion of the guide sleeve, and a cover plate with magnetism is hinged to the opening.
Preferably, the unidirectional driving control structure comprises a disc body and a cover body, one end of the disc body is rotatably connected in the cover body, a sliding plate is slidably connected in the cover body, a plurality of ratchets are arranged on the end face of the sliding plate, which is close to one side of the disc body, and a plurality of tooth sockets corresponding to the ratchets are arranged on the end face of the disc body; an elastic plate is arranged in the cover body and jacks the ratchets on the sliding plate into the tooth grooves.
Preferably, a plurality of guide rods are arranged in the cover body, and the guide rods are all arranged on the sliding plate in a penetrating way.
The beneficial effects of the invention are concentrated in that:
1. the workpiece is firmly pressed, the upper cambered surface is fully stressed, and the deformation is small.
2. The compressing piece provided by the invention can be reasonable in length and height, so that the clamping is convenient, and the safety is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the clamping device of the present invention;
FIG. 2 is a schematic view of the internal structure of the mounting box of the present invention;
FIG. 3 is a schematic view of the guide sleeve structure of the present invention;
FIG. 4 is an axial cross-sectional schematic view of a unidirectional drive control structure of the present invention;
legend description: 0. a workpiece; 1. v-shaped iron; 2. a pressing member; 3. a mounting box; 4. a guide sprocket; 5. locking the chain wheel; 6. a guide sleeve; 7. a drive shaft; 8. a second shaft; 9. a first shaft; 10. a worm wheel; 11. a worm; 12. a first bevel gear; 13. a second bevel gear; 14. a universal coupling; 15. an opening; 16. a cover plate; 17. a tray body; 18. a cover body; 19. a sliding plate; 20. a ratchet; 21. tooth slots; 22. an elastic plate; 23. a guide rod.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the double-chain clamping device comprises a V-shaped iron 1 and a pressing piece 2 for pressing a workpiece 0 on the V-shaped iron 1, wherein the workpiece 0 is placed in a concave area of the V-shaped iron 1, the pressing piece 2 is attached to the surface of the workpiece 0 through bending, and then the workpiece 0 is pressed on the V-shaped iron 1 by the pressing piece 2; in the embodiment, the pressing piece 2 adopts a single-row chain or a double-row chain, the chain can enable the joint area on the arc-shaped surface of the workpiece 0 to be stressed completely, and the workpiece 0 is not easy to be stressed excessively at a single point, so that the workpiece 0 is damaged; one end of the pressing piece 2 is connected to one side of the V-shaped iron 1, in this embodiment, one end of the pressing piece 2 (i.e. one end of the chain) is directly and fixedly connected to the base of the V-shaped iron 1, an adjusting device for adjusting the pressing force of the pressing piece 2 is arranged on the other side of the V-shaped iron 1, and the other end of the pressing piece 2 is connected to the adjusting device, so that the workpiece 0 is firmly fixed by the chain through the adjusting device.
The adjusting device comprises a mounting box 3 arranged on one side of a V-shaped iron 1, a guide chain wheel 4 and a locking chain wheel 5 are arranged on the outer wall of one side of the mounting box 3, the guide chain wheel 4 is close to one side of a workpiece 0, the pressing piece 2 bypasses from the lower part of the guide chain wheel 4 and is meshed with the upper part of the locking chain wheel 5, and a locking structure for controlling the locking chain wheel 5 to rotate is arranged on a first shaft lever 9 of the locking chain wheel 5; therefore, after the chain is wound on the guide sprocket 4 and the locking sprocket 5, the chain can be pressed on the workpiece 0 by rotating the two sprockets, and after the adjustment is completed, the locking sprocket 5 is locked by the locking structure, in fig. 1, in the locked state, the locking sprocket 5 cannot rotate anticlockwise, and at the moment, the chain cannot retract, so that the fixing of the chain is realized.
And when the chain is installed, the manual winding of the chain is relatively complicated, and the convenience is relatively poor. In this embodiment, a guide sleeve 6 is disposed between the guide sprocket 4 and the locking sprocket 5, as shown in fig. 1 and 3, one side of the guide sleeve 6 is fixedly connected to the outer wall of the installation box 3, two ends of the guide sleeve 6 are arc structures, one end of the guide sleeve 6 is sleeved on the lower portion of the guide sprocket 4, and the other end of the guide sleeve 6 is sleeved on the upper portion of the locking sprocket 5; a control structure for driving the guide chain wheel 4 and the locking chain wheel 5 to rotate is arranged in the mounting box 3; therefore, when the chain is installed, the other end of the chain is inserted into the guide sleeve 6, the guide sprocket 4 and the locking sprocket 5 are rotated at the moment, the chain can move along the guide sleeve 6 under the drive of the wheel of the guide sprocket 4, and after the chain is contacted with the locking sprocket 5, the chain is meshed with the locking sprocket 5, the locking sprocket 5 rotates together with the chain, and the chain is tensioned by the locking sprocket 5.
Specifically, for the control structure, the control structure comprises a driving shaft 7 arranged in a mounting box 3, as shown in fig. 2, a second shaft 8 of the guide sprocket 4 and a first shaft 9 of the locking sprocket 5 are in transmission connection with the driving shaft 7, and a rotary grip detachably connected with the driving shaft 7 is arranged outside the mounting box 3; taking fig. 1 as an example, during the chain compacting process, the guide sprocket 4 needs to rotate counterclockwise, and the locking sprocket 5 needs to rotate clockwise; when the chain is loosened, the rotation directions of the chain and the chain are opposite; in order to facilitate the locking of the locking sprocket 5, in this embodiment, the locking structure comprises a worm wheel 10 arranged on the first shaft 9, and the driving shaft 7 is provided with a section of worm 11, and the worm 11 is meshed with the worm wheel 10; that is, the locking chain wheel 5 can only rotate through the driving shaft 7, and the locking chain wheel 5 can not rotate by itself, so as to achieve the purpose of locking.
Therefore, for the transmission structure of the second shaft 8 and the driving shaft 7, specifically, the driving shaft 7 is provided with a first bevel gear 12, the installation box 3 is internally provided with a second bevel gear 13 meshed with the first bevel gear 12, and the second bevel gear 13 is connected with the second shaft 8 through a universal coupling 14 because the second bevel gear 13 and the second shaft 8 are not on the same axis; and the rotation direction of the second shaft 8 and the first shaft 9 is different, which can be adjusted by changing the direction of the screw thread of the worm 11.
During the process of loosening the workpiece 0 by the chain, the guide sprocket 4 and the locking sprocket 5 need to be reversely rotated, which is relatively complicated, and as a further optimization of the embodiment, an opening 15 is arranged at the upper part of the guide sleeve 6, and a cover plate 16 with magnetism is hinged on the opening 15; therefore, in the process of loosening the workpiece 0 by the chain, the chain is pulled up and the cover plate 16 is lifted, at the moment, the chain is separated from the locking chain wheel 5, and at the moment, the loosening operation of the chain is convenient; in this operation step, the guide sprocket 4 needs to freely rotate, i.e., the guide sprocket 4 can freely rotate both counterclockwise and clockwise; in this embodiment, the second shaft 8 and the driving shaft 7 between the first bevel gear 12 and the worm 11 are both driven by a unidirectional driving control structure, and the forward and reverse rotation of the driving shaft 7 alternately controls the first shaft 9 and the second shaft 8 to rotate in opposite directions.
Specifically, the unidirectional driving control structure includes a tray 17 and a cover 18, as shown in fig. 4, one end of the tray 17 is rotatably connected in the cover 18, a sliding plate 19 is slidably connected in the cover 18, that is, a plurality of guide rods 23 are disposed in the cover 18, the guide rods 23 are all arranged on the sliding plate 19 in a penetrating manner, a plurality of ratchets 20 are disposed on an end surface of the sliding plate 19 near one side of the tray 17, and a plurality of tooth grooves 21 corresponding to the ratchets 20 are disposed on an end surface of the tray 17; an elastic plate 22 for pushing the ratchet 20 on the sliding plate 19 into the tooth slot 21 is arranged in the cover body 18; that is, the second shaft 8 and the driving shaft 7 have two sections, and the unidirectional driving control structure is connected between the second shaft 8 or the driving shaft 7; when in use, due to the arrangement of the ratchet 20 and the tooth groove 21, the cover 18 can only rotate along one direction with the disc 17 synchronously, for example, when the cover 18 rotates clockwise, the ratchet 20 is clamped into the tooth groove 21 at the moment, and the disc 17 rotates synchronously; when the cover 18 rotates anticlockwise, the ratchet 20 cannot be clamped into the tooth grooves 21, and the cover 18 cannot carry the disc 17 to rotate synchronously, and the direction of the ratchet 20 can be changed for the synchronous rotation direction; in this case, the chain is pulled out directly from the guide sprocket 4 after the chain is lifted and separated from the locking sprocket 5 during the releasing of the chain.
In the process of installing the chain, the rotary handle is rotated in the forward direction, the guide sprocket 4 rotates at the moment to drive the chain to move in the guide sleeve 6, and the locking sprocket 5 is in a static state at the moment due to the arrangement of the unidirectional driving control structure on the driving shaft 7; after the chain moves to be in contact with the locking chain wheel 5, the rotary handle is reversely rotated, and the locking chain wheel 5 is driven to start rotating at the moment, and the guiding chain wheel 4 is not driven to rotate due to the reverse rotation of the rotary handle due to the arrangement of the unidirectional driving control structure on the second shaft 8; only after the chain is meshed with the locking chain wheel 5, the chain is used for driving the guide chain wheel 4 to rotate, and the structure can effectively avoid the asynchronism between the guide chain wheel 4 and the locking chain wheel 5, so that the chain cannot be accurately meshed with the locking chain wheel 5.
It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the described order of action, as some steps may take other order or be performed simultaneously according to the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments and that the acts and elements referred to are not necessarily required in the present application.
Claims (4)
1. The double-chain clamping device comprises a V-shaped iron (1) and a pressing piece (2) for pressing a workpiece (0) on the V-shaped iron (1), and is characterized in that the pressing piece (2) is attached to the surface of the workpiece (0) through bending, one end of the pressing piece (2) is connected to one side of the V-shaped iron (1), an adjusting device for adjusting the pressing force of the pressing piece (2) is arranged on the other side of the V-shaped iron (1), and the other end of the pressing piece (2) is connected to the adjusting device;
the adjusting device comprises an installation box (3) arranged on one side of a V-shaped iron (1), a guide chain wheel (4) and a locking chain wheel (5) are arranged on the outer wall of one side of the installation box (3), the guide chain wheel (4) is close to one side of a workpiece (0), the pressing piece (2) bypasses the lower part of the guide chain wheel (4) and is meshed with the upper part of the locking chain wheel (5), and a locking structure for controlling the locking chain wheel (5) to rotate is arranged on a first shaft lever (9) of the locking chain wheel (5);
a guide sleeve (6) is arranged between the guide sprocket (4) and the locking sprocket (5), one side of the guide sleeve (6) is fixedly connected to the outer wall of the installation box (3), two ends of the guide sleeve (6) are of arc structures, one end of the guide sleeve (6) is sleeved on the lower part of the guide sprocket (4), and the other end of the guide sleeve (6) is sleeved on the upper part of the locking sprocket (5); a control structure for driving the guide chain wheel (4) and the locking chain wheel (5) to rotate is arranged in the mounting box (3);
the control structure comprises a driving shaft (7) arranged in the mounting box (3), a second shaft rod (8) of the guide chain wheel (4) and a first shaft rod (9) of the locking chain wheel (5) are both in transmission connection with the driving shaft (7), and a rotary handle detachably connected with the driving shaft (7) is arranged outside the mounting box (3);
the locking structure comprises a worm wheel (10) arranged on the first shaft lever (9), the driving shaft (7) is provided with a section of worm (11), and the worm (11) is meshed with the worm wheel (10);
the driving shaft (7) is provided with a first bevel gear (12), the mounting box (3) is internally provided with a second bevel gear (13) meshed with the first bevel gear (12), and the second bevel gear (13) is connected with the second shaft (8) through a universal coupling (14);
the novel steering device is characterized in that the second shaft rod (8) and the driving shaft (7) between the first bevel gear (12) and the worm (11) are both of unidirectional driving control structures, the forward and reverse rotation of the driving shaft (7) alternately controls the first shaft rod (9) and the second shaft rod (8) to rotate in opposite directions through the unidirectional driving control structures, an opening (15) is formed in the upper portion of the guide sleeve (6), and a magnetic cover plate (16) is hinged to the opening (15).
2. The double-chain clamping device according to claim 1, wherein: the pressing piece (2) is a single-row chain or a double-row chain.
3. The double-chain clamping device according to claim 1, wherein: the unidirectional drive control structure comprises a tray body (17) and a cover body (18), one end of the tray body (17) is rotatably connected in the cover body (18), a sliding plate (19) is connected in a sliding manner in the cover body (18), a plurality of ratchets (20) are arranged on the end face, close to one side of the tray body (17), of the sliding plate (19), and a plurality of tooth grooves (21) corresponding to the ratchets (20) are arranged on the end face of the tray body (17); an elastic plate (22) for pushing the ratchet (20) on the sliding plate (19) into the tooth slot (21) is arranged in the cover body (18).
4. A dual chain clamping device according to claim 3, wherein: a plurality of guide rods (23) are arranged in the cover body (18), and the guide rods (23) are all arranged on the sliding plate (19) in a penetrating way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210793243.XA CN114986206B (en) | 2022-07-05 | 2022-07-05 | Double-chain clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210793243.XA CN114986206B (en) | 2022-07-05 | 2022-07-05 | Double-chain clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114986206A CN114986206A (en) | 2022-09-02 |
| CN114986206B true CN114986206B (en) | 2023-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210793243.XA Active CN114986206B (en) | 2022-07-05 | 2022-07-05 | Double-chain clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114986206B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD244309A1 (en) * | 1985-12-11 | 1987-04-01 | Rathenower Optische Werke Veb | CLAMPING DEVICE FOR CUTTING MACHINES |
| SE456409B (en) * | 1987-02-02 | 1988-10-03 | Samefa Ab | FASTENER STAMP FOR FIXED FIXING OF A DEFORMED VEHICLE IN A DIRECTORY |
| CN206811518U (en) * | 2017-05-10 | 2017-12-29 | 天津华油天元石化设备有限公司 | A kind of electronic tube climber |
| CN207656317U (en) * | 2017-12-20 | 2018-07-27 | 江苏益马机械有限公司 | A kind of big work pieces process fixture of chain type clamping |
| CN110153532A (en) * | 2019-06-06 | 2019-08-23 | 中建八局第一建设有限公司 | A kind of portable pipe welding robot |
| KR102128328B1 (en) * | 2019-09-16 | 2020-06-30 | 디씨에스이엔지 주식회사 | Carriage For Pipe Machining |
| CN210524507U (en) * | 2019-10-08 | 2020-05-15 | 淮安信息职业技术学院 | Adjustable fixture for machining |
| CN212495496U (en) * | 2020-05-12 | 2021-02-09 | 扬州博世特工具有限公司 | Self-locking chain wheel frame combination convenient for chain locking |
| CN115816119A (en) * | 2020-11-09 | 2023-03-21 | 郦鸿志 | Anti-deformation clamp |
| CN113305599B (en) * | 2021-06-10 | 2023-10-31 | 霍山嘉远智能制造有限公司 | Quick clamping and correcting tool for numerical control boring and milling machine of special structural part |
-
2022
- 2022-07-05 CN CN202210793243.XA patent/CN114986206B/en active Active
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| CN114986206A (en) | 2022-09-02 |
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